Scaling Group Detail - General

An Auto Scaling group defines the parameters for the Eucalyptus instances that are
used for scaling, as well as the minimum, maximum, and desired number of instances to use
for Auto Scaling your application. This page allows you to view and edit a scaling group.
For more information on Auto Scaling, see Using Auto Scaling in the
Eucalyptus User Guide.

Capacity

Use the Min control to change the minimum number of instances you want running in your auto
scaling group.

Use the Desired control to change the desired number of instances you want running.

Use the Max control to change the maximum number of instances you want running.

A termination policy defines how instances that are no longer needed in the
scaling group are terminated. A default termination policy is already
pre-selected and you can add termination policies by selecting them from the
Termination policies field. The termination
policies are executed in the order they are listed.

Note: You can remove a selected termination policy by clicking on the X next to the policy name in the
Termination policies field.

Scaling group

If a VPC network was selected for the scaling group, the VPC network and its subnets display.
If no VPC network was selected, the VPC components are not shown and the availability zone(s) are editable.

To change the launch configuration, select a new one from the Launch
Configuration drop-down list box. A launch configuration
defines the properties of the instances that are launched as part of your
auto scaling group.

For VPC networks, the following options are available:

You can add VPC subnets by selecting them from the VPC subnet(s) field.

Note: You can remove a selected VPC subnet by clicking on the X next to the IP address associated with each subnet in the
VPC subnet(s) field.

If a VPC network was associated with your scaling group, availability zones are view-only and are not editable.
Otherwise, you can add availability zones by selecting them from the Availability Zones field.

Note: You can remove a selected availability zone by clicking on the
x next to the availability zone's name in the
Availability Zones field.

The Load balancer(s) field lists all the load balancers associated with the scaling group.

You can change the amount of time after a scaling activity completes before any new scaling activity can start
by editing the cooldown period, in seconds, in the Default cooldown period (secs) control.

You can change the amount of time after a new instance is launched in your auto scaling group before health checks start
for the instance by editing the grace period, in seconds, in the Health check grace period (secs) control.

Tags

A tag is a key/value pair containing data that you can attach to resources in
your cloud. This section allows you to view, add or delete tags for your scaling
group and for instances that run in your scaling group.

If you want to apply a new tag to instances running in the scaling group,
select the Propagate check box.

Type the key name for your tag into the name... text
box.

Note: Tags cannot start with "euca:" or "aws:".

Type the value for your tag into the value... text
box.

Click the Add Tag button.

If you wish to add additional tags, repeat the preceding steps.

To delete one or more tags, move your mouse over the tag you wish to delete,
and click the X button.

Saving Your Changes

Once you are satisfied with the edits you made to your scaling group,
click the Save Changes button, or click the
X button in the upper right corner to cancel the
updates.